public void GetValidAngleOfAttack_VariousAerodynamicsData_ReturnsExpectedValue(AerodynamicsData data,
Angle expectedAngle)
{
// Call
Angle angleOfAttack = AerodynamicsDataTestHelper.GetValidAngleOfAttack(data);
// Assert
Assert.AreEqual(expectedAngle, angleOfAttack);
}
public void GetValidAngleOfAttack_AerodynamicsDataNull_ThrowsArgumentNullException()
{
// Call
TestDelegate call = () => AerodynamicsDataTestHelper.GetValidAngleOfAttack(null);
// Assert
var exception = Assert.Throws <ArgumentNullException>(call);
Assert.AreEqual("data", exception.ParamName);
}
public static void Calculate_Always_ReturnsExpectedZeroPitchRate()
{
// Setup
var random = new Random(21);
AircraftData aircraftData = AircraftDataTestFactory.CreateRandomAircraftData();
Angle angleOfAttack = AerodynamicsDataTestHelper.GetValidAngleOfAttack(aircraftData.AerodynamicsData);
var aircraftState = new AircraftState(angleOfAttack,
new Angle(),
random.NextDouble(),
random.NextDouble(),
random.NextDouble());
var calculator = new AbortedTakeOffDynamicsCalculator(aircraftData, random.NextDouble(), random.NextDouble());
// Call
AircraftAccelerations accelerations = calculator.Calculate(aircraftState);
// Assert
Assert.Zero(accelerations.PitchRate.Radians);
}
public static void Calculate_Always_SendsCorrectInput()
{
// Setup
var random = new Random(21);
AircraftData aircraftData = AircraftDataTestFactory.CreateRandomAircraftData();
var calculator = new TestTakeOffDynamicsCalculator(aircraftData, random.NextDouble(), random.NextDouble());
Angle angleOfAttack = AerodynamicsDataTestHelper.GetValidAngleOfAttack(aircraftData.AerodynamicsData);
var state = new AircraftState(angleOfAttack,
new Angle(),
random.NextDouble(),
random.NextDouble(),
random.NextDouble());
// Call
calculator.Calculate(state);
// Assert
Assert.AreSame(state, calculator.CalculateDragInput);
}
public void Create_WithCalculation_ReturnsExpectedAircraftData()
{
// Setup
var random = new Random(21);
var aircraftData = new AircraftData
{
WingSurfaceArea = random.NextDouble(),
AspectRatio = random.NextDouble(),
OswaldFactor = random.NextDouble(),
MaximumLiftCoefficient = random.NextDouble(),
LiftCoefficientGradient = random.NextDouble(),
ZeroLiftAngleOfAttack = random.NextAngle(),
RestDragCoefficient = random.NextDouble(),
RestDragCoefficientWithEngineFailure = random.NextDouble()
};
// Call
KernelAerodynamicsData data = AerodynamicsDataFactory.Create(aircraftData);
// Assert
AerodynamicsDataTestHelper.AssertAerodynamicsData(aircraftData, data);
}
public static void Calculate_WithAircraftStateAlways_ReturnsExpectedClimbRate()
{
// Setup
var random = new Random(21);
AircraftData aircraftData = AircraftDataTestFactory.CreateRandomAircraftData();
Angle angleOfAttack = AerodynamicsDataTestHelper.GetValidAngleOfAttack(aircraftData.AerodynamicsData);
var aircraftState = new AircraftState(angleOfAttack,
new Angle(),
random.NextDouble(),
random.NextDouble(),
random.NextDouble());
var calculator = new TestTakeOffDynamicsCalculator(aircraftData, random.NextDouble(), random.NextDouble());
// Call
AircraftAccelerations accelerations = calculator.Calculate(aircraftState);
// Assert
double expectedClimbRate = aircraftState.TrueAirspeed * Math.Sin(aircraftState.FlightPathAngle.Radians);
Assert.AreEqual(expectedClimbRate, accelerations.ClimbRate, tolerance);
}
public static void Calculate_WithAirspeedLowerThanThreshold_ReturnsExpectedZeroRate()
{
// Setup
var random = new Random(21);
AircraftData aircraftData = AircraftDataTestFactory.CreateRandomAircraftData();
Angle angleOfAttack = AerodynamicsDataTestHelper.GetValidAngleOfAttack(aircraftData.AerodynamicsData);
var aircraftState = new AircraftState(angleOfAttack,
new Angle(),
random.NextDouble(),
random.NextDouble(),
random.NextDouble());
// Precondition
Assert.IsTrue(aircraftState.TrueAirspeed < 1);
var calculator = new TestTakeOffDynamicsCalculator(aircraftData, random.NextDouble(), random.NextDouble());
// Call
AircraftAccelerations accelerations = calculator.Calculate(aircraftState);
// Assert
Assert.Zero(accelerations.FlightPathRate.Degrees);
}
